Know Your Environment. Protect Your Health.

Dibromochloromethane

Borden County Water System

Dibromochloromethane, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Dibromochloromethane and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.

 

8

Samples

0

Samples exceeding legal limit (MCL)

3

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
20192.51 ppb21ND - 5.02 ppb
2020ND10ND
2021ND10ND
20221.68 ppb21ND - 3.35 ppb
20231.21 ppb111.21 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.1 ppb

The EWG Health Guideline of 0.1 ppb for dibromochloromethane was based on the California Office of Environmental Health Hazard Assessment's public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer and harm to fetal growth and development.

ppb = parts per billion

All test results

Date Lab ID Result
2018-01-09Q1800752005ND
2019-01-10Q1901339008ND
2019-07-01Q19411200035.02 ppb
2020-01-09Q2000926001ND
2021-01-12Q2100647001ND
2022-04-12Q2211233003ND
2022-07-26Q22212240033.35 ppb
2023-01-10Q23011940021.21 ppb